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[yoyoyip]

I encountered error for autoassembler, it failed at WriteProcessMemory at autoassembler, then a messagebox popup said "Not all instructions could be injected". Below are the OutputDebugString captured,

Switched Process
Calling ZwAllocateVirtualMemory
ntStatus=82106958
BaseAddress=0FC00000
RegionSize=1000
WriteProcessMemory:Getting PEPROCESS
Retrieved peprocess
Checking safety of memory
Memory addr:0FC00000 not safe to write!
Memory addr:0FC00006 not safe to write!.......

I got 2 questions to ask,
1:
At the IO dispatched routine for IOCTL_CE_ALLOCATEMEM, I saw the line

ZwAllocateVirtualMemory((HANDLE)-1,&BaseAddress,0, &RegionSize, inp->AllocationType, inp->Protect);

is it right to put in the handle -1, instead of the openprocess handle?

2:
Why it failed on WriteProcessMemory.

Appreciate that if anybody can help me on the above problems.

[Dark Byte]

1: Yes, -1 means current process. And I changed to that process

2: The cvs version has a test where usermode memory is checked as if it's kernelmode. But never accessed memory hasn't been physically assigned so that would cause a error.
solution: remove the check (add it back) or disable kernelmode read/write process memory